What I don't understand, is why anyone would buy the ES and mess with these auto transformers at all. It costs $1,250 for the growatt and auto transformer:
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Or one could just purchase a LV6048 for $1,499
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Why make things difficult? The lv6048 has 1000W more ac output capacity, and 2000W larger pv input capacity, for $250 more, and it would be easier to wire up, and you would not have any safety issues at all. And you get split phase output as well.
I just fail to see the logic as to why anyone would use these European models. Safety wise, or cost wise. It doesn't make sense to me.